Second Opinion"Geriatric Oncology"
As people grow older, the likelihood of getting a cancer diagnosis increases, but there is no one standard treatment for older patients. Beverly Barr Vaughan was diagnosed and treated for colon cancer at the age of 77. Follow this passionate discussion as Beverly and the experts delve into the issue of chronological age versus physiological age. D

11:00 am

NOVA"Secrets of the Viking Sword"
The Vikings were among the fiercest warriors of all time, known for creating the ultimate weapon of their era: the Ulfberht sword. Using cutting-edge science, NOVA reconstructs the Ulfberht to reveal the secrets of a sword both feared and prized. D

12:00 pm

NOVA scienceNOW"What Makes Us Human?"
Scientists have struggled for centuries to pinpoint the qualities that separate human beings from the millions of other animals who have evolved on this planet. David Pogue explores the traits we once thought were uniquely ours - language, tool-making, even laughter - to uncover their evolutionary roots. He traces some of the crucial steps that transformed cave men to accountants - and learns how much of his own DNA came from a Neanderthal ancestor. D

1:00 pm

Outdoor Idaho"Horse Packers & Wagon Masters"
Idahoans who bond with horses and mules to follow dusty trails view Idaho's scenery at leisure and share its past. One man sets a distance record for packing with horse and mule as he rides for charity. Teamsters explore part of the Oregon Trail with wagons and mules, and trail riders head into the Selkirk Mountains.G

1:30 pm

Dialogue"Alexandra Fuller: Conversations from the Sun Valley Writers' Conference"
Marcia Franklin interviews the author who now lives in Jackson Hole, Wyoming, but who grew up in Rhodesia, now known as Zimbabwe. Her newest book is about her mother's early years in Kenya and Rhodesia. The interview is the first of four 2012 "Conversations from the Sun Valley Writers' Conference."G

NOVA"Secrets of the Viking Sword"
The Vikings were among the fiercest warriors of all time, known for creating the ultimate weapon of their era: the Ulfberht sword. Using cutting-edge science, NOVA reconstructs the Ulfberht to reveal the secrets of a sword both feared and prized. D

5:00 pm

NOVA scienceNOW"What Makes Us Human?"
Scientists have struggled for centuries to pinpoint the qualities that separate human beings from the millions of other animals who have evolved on this planet. David Pogue explores the traits we once thought were uniquely ours - language, tool-making, even laughter - to uncover their evolutionary roots. He traces some of the crucial steps that transformed cave men to accountants - and learns how much of his own DNA came from a Neanderthal ancestor. D

6:00 pm

Frontline"The Real CSI"
From the courtroom to the living room (thanks to the hit television series CSI), forensic science is king. Expertise on fingerprints, ballistics and bite mark analysis is routinely called on to solve the most difficult criminal cases - and to put the guilty behind bars. But how reliable is the science behind forensics? A FRONTLINE investigation finds serious flaws in some of the best-known tools of forensic science and wide inconsistencies in how forensic evidence is presented in the courtroom. D

NOVA scienceNOW"What Makes Us Human?"
Scientists have struggled for centuries to pinpoint the qualities that separate human beings from the millions of other animals who have evolved on this planet. David Pogue explores the traits we once thought were uniquely ours - language, tool-making, even laughter - to uncover their evolutionary roots. He traces some of the crucial steps that transformed cave men to accountants - and learns how much of his own DNA came from a Neanderthal ancestor. D

11:00 pm

Frontline"The Real CSI"
From the courtroom to the living room (thanks to the hit television series CSI), forensic science is king. Expertise on fingerprints, ballistics and bite mark analysis is routinely called on to solve the most difficult criminal cases - and to put the guilty behind bars. But how reliable is the science behind forensics? A FRONTLINE investigation finds serious flaws in some of the best-known tools of forensic science and wide inconsistencies in how forensic evidence is presented in the courtroom. D